The intention of disabling CONFIG_PRINTK is that all
invocations of it will compile to nothing, saving a lot
of runtime overhead and footprint since all the format
strings are completely dropped; instances of printk()
and related functions are no-ops.
However, some subsystems need snprintk() for string
processing, since the snprintf() implementations in even
minimal C library are too costly in text footprint or
stack usage for some applications. This processing is
required for the application to even function.
This patch continues to have disabling CONFIG_PRINTK to
cause the non snprintk functions to become no-ops, but
now we always compile the necessary bits for snprintk(),
relying on gc-sections to discard them if unused.
z_vprintk() is now unconditionally defined in the header
since it is not tied to any particular output sink and
is intended for users who know exactly what they are
doing (it's in zephyr private scope).
Relates to: #21564
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
We have a collection of python scripts that are part of our build
system. This PR collects docstring comments added to these scripts into
a summary document. Previous references to just the script name in
other documentation are updated to point to this build tool
documentation.
Some of the scripts needed an update to be processed (via include
directives) consistently.
Signed-off-by: David B. Kinder <david.b.kinder@intel.com>
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
Move adafruit_2_8_tft_touch_v2 to Kconfig.defconfig format.
As part of this change Kconfig flags SPI and DISPLAY are removed
from the shield configuration as they are part of application
configuration.
Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
Move dfrobot_can_bus_v2_0 to Kcondig.shield foramt and as part of
this change introduce nrf52_pca10040 board specific configuration.
Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
Move link_board_can to conditional Kconfig.
As part of this change, some board specific symbols are moved
to reel_board specific file.
Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
Move sparkfun_sara_r4 to conditional Kconfig.
As part of this change, remove disco_l475_iot1 specific configuration
as it is already part of board default configuration.
Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
Factorize definitions for ssd1306_128x32 and sd1306_128x64 shields
and move to conditional Kconfig.
As part of this change, direct drivers Kconfig symbols enabling
(I2C, SSD1306) are removed as they are application responsibility.
Also disabling SSD16XX is removed as SSD16XX should not be enabled
by default.
Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
Move wavehare epaper shields to conditional Kconfig.
As part of this change, direct drivers Kconfig symbols enabling
(SPI, SSD16XX) are removed as they are application
responsibility. GPIO is removed as well as it should be 'y' by
default on all boards according to Default board configuration
guidelines.
Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
It is actually possible to use several shields in the same project.
Reflect it in the shields documentation.
Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
Put shield configuration Kconfig flags in new Kconfig.defconfig.
This way shield BLE subsystem can now be selected by application
using NETWORKING symbol, similarly to what is done when modem is
directly present on board.
Additionally, move board Kconfig files to a similar scheme where
shields related Kconfig flags are made available under shield,
board and NETWORKING symbols.
Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
Put shield configuration Kconfig flags in new Kconfig.defconfig.
This way shield BLE susbystem can now be selected by application
using BT symbol, similarly to what is done when BlueNRG ship is
directly present on board.
Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
To make use of shields Kconfig.defconfig, parse these files
and newly created Kconfig.shield files which will define the
SHIELD_XXX Kconfig symbols that will be used for conditional
configuration.
Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
Add shields_list_contains Kconfig function which return bool based on
check of shield presence in cmake SHIELD_AS_LIST.
Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
For application portability, it is required that feature activation
is made conditional in shield configuration. This way features remain
controlled on application side.
To enable this we need that list of user activated shield is made
available to Kconfig.
Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
This commit enables the CMSIS-Core(R) processor interface driver for
the Cortex-R platforms by default.
The CMSIS-Core component provides a set of standard interface functions
to control the Cortex-R series processor cores and will be required by
the arch port as well as other CMSIS library components (e.g. CMSIS-DSP
and CMSIS-NN).
Signed-off-by: Stephanos Ioannidis <root@stephanos.io>
Include stdlib.h to suppress a missing declaration
warning for exit() when compiled as a Linux target.
Signed-off-by: Oleg Zhurakivskyy <oleg.zhurakivskyy@intel.com>
Add comment that explains why a different byte order is used for the
3-byte opcode on the CID part of the opcode.
Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
Use 24-bit functions for byteorder and net_buf in order to make the
byteorder used more readable.
Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
Fix tx_time calculation for the case that BT_CTRL_PHY is defined and
there has not been a feature exchange.
Signed-off-by: Wolfgang Puffitsch <wopu@demant.com>
Signed-off-by: Vinayak Kariappa Chettimada <vich@nordicsemi.no>
Fix tx_time calculation for the case that BT_CTRL_PHY is defined and
there has not been a feature exchange.
Signed-off-by: Wolfgang Puffitsch <wopu@demant.com>
Signed-off-by: Vinayak Kariappa Chettimada <vich@nordicsemi.no>
Credits are 2 octects long so an s16_t positive portion can only half to
the theorical maximum number of credits, so instead this uses u16_t and
do a bound check instead of checking for negative values.
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
With the changes that introduced a queue k_sem is only used with
K_NO_WAIT which means it is no longer possible to wait/block for credits
so the usage of k_sem is no longer needed and can be safely replaced
with atomic_t just to count the available credits at a given instant.
Fixes#19922
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
